方钢管混凝土柱-H形钢梁槽钢栓接节点抗震性能有限元分析  

作　　者：赵力恒 

机构地区：[1]内蒙古科技大学土木工程学院,内蒙古包头014010

出　　处：《科技创新与应用》2023年第28期59-62,共4页Technology Innovation and Application

摘　　要：提出一种方钢管混凝土柱-H形钢梁槽钢栓接节点,建立节点的ABAQUS有限元模型,对模型进行低周往复加载,分析侧板和槽钢厚度、侧板高度变化对节点抗震性能和转动刚度的影响。对节点的承载力、滞回曲线、骨架曲线、刚度退化曲线以及节点弯矩-转曲线等参数进行对比分析。结果表明,节点具有良好的承载力和耗能能力,增加侧板和槽钢厚度能使滞回曲线变得更加饱满,节点的承载力、割线刚度均有较大的提升;侧板高度增加对节点抗震性能的影响较小;增加侧板和槽钢厚度能明显提高节点刚度,侧板高度增加对节点刚度的提高较小。A kind of channel steel bolted joint between concrete-filled square steel tube column and H-shaped steel beam is proposed,and the ABAQUS finite element model of the joint is established.The low-cycle reciprocating loading of the model is carried out.The effects of side plate thickness and channel steel thickness and side plate height on the seismic performance and rotational stiffness of the joints are analyzed.The bearing capacity,hysteretic curve,skeleton curve,stiffness degradation curve and moment-rotation curve of joints are compared and analyzed.The results show that the joint has good bearing capacity and energy dissipation capacity,and the hysteretic curve becomes fuller with the increase of the thickness of side plate and channel steel,and the bearing capacity and Secant stiffness of the joint are greatly improved.The increase of side plate height has little effect on the seismic performance of joints;increasing the thickness of side plate and channel steel can obviously improve the joint stiffness,while the increase of side plate height has little effect on the joint stiffness.

关 键 词：方钢管混凝土柱 栓接节点 抗震性能 节点刚度 有限元分析 

分 类 号：TU398.9[建筑科学—结构工程]